What I did: read German release notes of Agenda 10.0 / 10.0.1 in App Store
What happened: You translated „Fixed“ with „Fest“. This means „solid“ in German in this context (in other context it may also mean „Festival“ or „Party“)
What I expected: You should have used „Behoben“ in the context of „Fehler behoben“ (bug fixed)
Things that might be helpful to know (Agenda version, OS and model, etc):
IPad OS 13.5, Agenda 10.x